Aircraft专利检索-起落架飞行器飞机类型专利检索查询-专利查询网

Aircraft

阅读：694发布：2024-02-01

专利汇可以提供Aircraft专利检索，专利查询，专利分析的服务。并且An aircraft of reduced drag adapted for buoyancy upon the thrust stream of its engines. The aircraft having a forwardly disposed base having a generally horizontally disposed upper surface, first and second platforms arranged in stepped relationship to the base, a pair of upwardly and outwardly extended sides interconnecting the base and platforms; a first set of engines adapted to draw air from above the base and thrust the air rearwardly below the first platform; a second set of engines adapted to draw air from above the first platform and thrust the air rearwardly below the second platform, the aircraft being buoyantly supported on the thrust stream. Elevators are provided to direct the flow of thrust from the engines and a forwardly disposed retractable member pivotally connected to the base and disposed between the sides to occlude a direct flow of air into the first engines to effect a cavity reduction at the prow of the aircraft to facilitate rapid lift thereto. Conventional rudders and landing gear are also provided for obvious purposes.，下面是Aircraft专利的具体信息内容。

权利要求

1. An aircraft comprising: an elongated hull having a double wall, said hull being generally crescent in cross section, the central portion of the crescent being the bottom of the hull, the cross section of the hull departing somewhat from the shape of a crescent in that the upper edges of the aircraft are gradually curved outwardly toward a horizontal direction, the side view of the upper edges of said aircraft as defined by said outer ends of said crescent-shaped hull being gradually curved from the horizontal at the front of said aircraft upwardly toward the middle portion of said aircraft and then curving toward the horizontal again to provide a substantially horizontal fore-to-aft upper edge at the rear of said aircraft, the bottom of said aircraft being stepped in a plurality of levels from a lowest level in front to a highest level at the rear of said aircraft, the lowest level being gradually curved upwardly toward the front of said aircraft to form an airfoil, the bottom of said crescent cross section for each of said levels being modified to provide a horizontal platform that functions to provide lift, the adjacent ends of said platforms overlapping to form respective open horizontal fore-to-aft ducts therebetween, propulsion means mounted in each of said ducts to propel a fluid stream rearwardly over the lower surface of that one of said platforms forming the upper portion of the respective duct, an elevator means mounted in the exhaust stream of said propulsion means at the rear of at least one of said platforms, and a rudder means mounted to the aft portion of said aircraft.

2. An aircraft as claimed in claim 1 having a prow panel pivotally connected to the front edge of the fore one of said platforms, said panel being adapted To be rotated from a position adjacent to and in the plane of said fore platform to an upward position across the bottom surface of said crescent-shaped hull to obstruct the flow of air directly in a fore-to-aft direction over the front portion of said fore platform and to form a cavity above said platform communicating with the fore one of said ducts to direct the flow of air downwardly toward the upper surface of said fore platform and into said fore duct.

3. An aircraft as claimed in claim 1 wherein said elevator means includes a flap pivoted to the rear edge of at least one of said platforms, said flap being rotatable from a horizontal position to a downward and rearwardly slanting position.

4. An aircraft as claimed in claim 2 wherein said rudder means includes between the sides of said aircraft a fin mounted upright and longitudinally on the upper surface at the rear portion of the aft one of said platforms, and a vertical rudder pivotally mounted to the rear portion of said fin.

5. An aircraft as claimed in claim 2 having a stabilizing flap attached longitudinally to each of said upper edges of said crescent hull to extend the surfaces of the respective upper edge.

6. An aircraft as claimed in claim 2 wherein a roll flap is mounted in an opposite position on each side of said aircraft, each of said flaps being an elongated member mounted longitudinally to pivot about its upper edge from a position coextensive with the outer surface of its sides to a substantially outward horizontal position, the contour of said member being arcuate to conform with the contour of the outer wall of the side of said aircraft.

7. An aircraft as claimed in claim 2 wherein the fore central portion of said crescent-shaped hull is enlarged to enclose a cockpit.

8. An aircraft as claimed in claim 2 wherein spaces between the double walls on the sides of said aircraft are utilized for fuselages.

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